Real-World Maths Modelling · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

Turning real problems into maths

Mathematics · Mathematical Thinking · ages 9-10
Name ______________________   Date ____________

  1. A label says 10% of £50 is £5. Is the label right?

    Circle one:   True   False

  2. Nana's lemonade uses 2 lemon wedges per glass. How many wedges does she need for 5 glasses?

    • 10 wedges
    • 7 wedges
    • 3 wedges
    • 12 wedges

  3. A recipe for 2 people needs 100g of pasta. To cook for 4 people, do you double or halve the pasta?

    • Double it
    • Halve it
    • Keep it the same

  4. Finding 10% of an amount means dividing it by 10.

    Circle one:   True   False

  5. A room is 4 m long and 5 m wide. How many square metres of carpet cover the floor?

    • 20 square metres
    • 18 square metres
    • 9 square metres
    • 40 square metres

  6. A £60 game is 25% off. What is the sale price?

    Full price60Discount(25%)15
    • £15
    • £35
    • £45

  7. A cake needs 1/2 cup of milk. How many cups of milk do 4 cakes need?

    Answer: ______________

  8. A £30 toy has 20% off in a sale. What is the sale price?

    • £24
    • £10
    • £28
    • £6

  9. A scale drawing uses 1 cm for every 2 m. A wall measures 3 cm on the drawing. How long is the real wall in metres?

    Answer: ______________

  10. Priya's recipe for 3 people needs 90g of sugar. For 9 people she works out 90 + 9 = 99g. What is her mistake?

    • She used the wrong ingredient amount
    • She added instead of multiplying by 3
    • She should have divided by 3
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Answer key

For grown-ups. Fold this page away before handing over the rest.

Turning real problems into maths W1-mt_8xVHooT4aI-s1

  1. True · 10% means 10 out of 100, and a tenth of £50 is £5.
  2. 10 wedges · 5 glasses need 5 lots of 2 wedges, and 5 x 2 = 10 wedges.
  3. Double it · 4 people is twice 2 people, so you need twice as much pasta: 100g x 2 = 200g.
  4. True · Splitting an amount into 10 equal parts gives you one part, which is 10%.
  5. 20 square metres · A 4 m by 5 m room has area 4 x 5 = 20 square metres.
  6. £45 · 25% of £60 is £15, so the sale price is £60 - £15 = £45.
  7. 2 · 4 cakes need 4 lots of 1/2 cup, and 4 x 1/2 = 2 cups.
  8. £24 · 20% of £30 is £6, so the sale price is £30 - £6 = £24.
  9. 6 · Each centimetre stands for 2 m, so 3 cm stands for 3 x 2 = 6 m.
  10. She added instead of multiplying by 3 · 9 people is 3 times 3 people, so she needed 90 x 3 = 270g, not 90 + 9.
Worksheet · LightMySky